: Circular pipe / hose fitting diameter 98mm. corrosion-resistant,sun-proof, very durable. stainless steel bull nose wall vent with anti insect grill This stylish steel wall extractor vent outlet has a fine mesh to prevents mouse birds from entering your home and a weather seal to prevent unwanted leaks and drafts. Application:perfect for all tumble dryer vent pipes / hoses, bathroom vents & extractors, air conditioning units, kitchen fans & vents, all home wall vents, heat transfer and ventilation systems, gas & electric dryers, cooker hood extractors, as well as a wide of industrial uses. colour:Silver Material:304 stainless steel Size: about 98 * 140 * 44mm Package Contents: 1 x Air Vent 2 x Screws 2 x Expansion tube Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.